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Complexes of Co(II), Ni(II) and Cu(II) with lapachol

机译:Co(II),Ni(II)和Cu(II)与拉帕胆的络合物

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摘要

Complexes of naturally occurring hydroxynaphtho-quinone, lapachol (2-hydroxy-3(3-methyl-2-buthenyl)-1,4-naphthoquinone = HL) with Co(II), Ni(II) and Cu(II) have been prepared by reaction of the corresponding acetates with the ligand (HL) in ethanol. The molecular and crystal structures were determined for [CoL2(EtOH)(2)] (1), [NiL2(EtOH)(2)] (2), and [CuL2(py)(2)] (3). In all cases the deprotonated lapachol behaves as chelating bidentate ligand. The complexes were also characterized by elemental analyses, cyclic voltammetry, and FAB-MS. (C) 2007 Elsevier Ltd. All rights reserved.
机译:天然存在的羟基萘醌,拉帕胆(2-羟基-3(3-甲基-2-丁烯基)-1,4-萘醌= HL)与Co(II),Ni(II)和Cu(II)的配合物通过使相应的乙酸盐与配体(HL)在乙醇中反应制备。确定了[CoL2(EtOH)(2)](1),[NiL2(EtOH)(2)](2)和[CuL2(py)(2)](3)的分子和晶体结构。在所有情况下,去质子化的lapachol表现为螯合的二齿配体。还通过元素分析,循环伏安法和FAB-MS对复合物进行了表征。 (C)2007 Elsevier Ltd.保留所有权利。

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